<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注册</title>
</head>
<body>
<form action="/haha/registerServlet" method="post">
    <input name="username" placeholder="请输入用户名">
    <input name="password" type="password" placeholder="请输入密码">
    <input type="submit" value="注册">
</form>
</body>
</html>